Diamond Filtration Media works faster, longer, better. Performance tested and certified effective by Marineland Labs, each has been compared against the leading brands of chemical filtration media. Premium Activated Carbon and Ammonia-Neutralizing Crystals is ideal for new aquariums. This special formulation of new faster-acting Black Diamond and super-effective White Diamond cleans and conditions aquarium water, ridding it of dissolved organic waste and odors as it removes toxic ammonia and chloramines. Outperforms other blends by as much as 4 to 1.
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